package com.fattiger.framework.sessionshare.filter;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.fattiger.framework.sessionshare.session.Session;
import com.fattiger.framework.sessionshare.session.SessionManager;
import com.fattiger.framework.sessionshare.session.redis.RedisSessionManager;

/**
 * 
 * @author fattiger.xiaoyang
 *
 */
public class CheckLoginFilter implements Filter {

    private SessionManager manager = new RedisSessionManager();
    @Override
    public void init(FilterConfig filterConfig) throws ServletException {

    }

    @Override
    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
        HttpServletRequest req = (HttpServletRequest) request;
        HttpServletResponse rep = (HttpServletResponse) response;
        Session session = manager.getSession(req,false);
        if(session==null){//未登录
            rep.sendRedirect("/sessionshare-web");
        }else{//已经登录
            chain.doFilter(request,response);
        }
    }

    @Override
    public void destroy() {

    }
}
